package com.coolweather.zhoumo2;

import android.app.ProgressDialog;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;

import com.coolweather.zhoumo2.db.City;
import com.coolweather.zhoumo2.db.County;
import com.coolweather.zhoumo2.db.Province;
import com.coolweather.zhoumo2.util.HttpUtil;
import com.coolweather.zhoumo2.util.Utility;

import org.litepal.crud.DataSupport;
import org.litepal.tablemanager.Connector;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.Response;

public class ChooseAreaFragment extends Fragment {
    public static final int LEVEL_PROVINCE = 0;
    public static final int LEVEL_CITY = 1;
    public static final int LEVEL_COUNTY = 2;
    private Button backButton;
    private TextView titleText;
    private ArrayAdapter<String> adapter;
    private List<Province> provinceList;
    private List<City> cityList;
    private List<County> countyList;
    private List<String> dataList = new ArrayList<>();
    private ListView listView;
    private Province selectedProvince;
    private City selectedCity;
    private int CurrLevel;
    private ProgressDialog progressDialog;

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.activity_main,container,false);
        titleText = (TextView) view.findViewById(R.id.title_text);
        backButton = (Button) view.findViewById(R.id.back_button);
        listView = (ListView) view.findViewById(R.id.list_Province);
        adapter = new ArrayAdapter<>(getContext(),
                android.R.layout.simple_list_item_1,
                dataList);
        listView.setAdapter(adapter);
        createBase();
        /*DataSupport.deleteAll(Province.class);
        DataSupport.deleteAll(City.class);
        DataSupport.deleteAll(County.class);*/
        return view;
    }

    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                if (CurrLevel == LEVEL_PROVINCE) {
                    selectedProvince = provinceList.get(position);
                    //queryCityData();
                    dispCityData();
                }else if (CurrLevel == LEVEL_CITY){
                    selectedCity = cityList.get(position);
                    dispCountyData();
                }else if (CurrLevel == LEVEL_COUNTY) {
                    String weatherId = countyList.get(position).getWeatherId();
                    if (getActivity() instanceof WeatherActivity){
                        Intent intent = new Intent(getActivity(),WeatherActivity.class);
                        intent.putExtra("weather_id",weatherId);
                        startActivity(intent);
                        getActivity().finish();
                    }else if(getActivity() instanceof WeatherActivity){
                        WeatherActivity activity = (WeatherActivity) getActivity();
                        activity.drawerLayout.closeDrawers();
                        activity.swipeRefresh.setRefreshing(true);
                        activity.requestWeather(weatherId);
                    }
                }
            }
        });
        backButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if (CurrLevel == LEVEL_COUNTY){
                    dispCityData();
                }else if (CurrLevel == LEVEL_CITY){
                    dispProvinceData();
                }
            }
        });
        dispProvinceData();
    }

    private void createBase() {
        Connector.getDatabase();
    }

    private void dispProvinceData() {
        titleText.setText("中国");
        backButton.setVisibility(View.GONE);
        provinceList = DataSupport.findAll(Province.class);
        Log.d("debug", String.valueOf(provinceList.size()));
        if (provinceList.size() > 0) {
            dataList.clear();
            for (Province province : provinceList) {
                dataList.add(province.getProvinceName());
            }
            adapter.notifyDataSetChanged();
            CurrLevel = LEVEL_PROVINCE;
        }else{
            String address = "http://guolin.tech/api/china";
            queryDataFromServer(address,"province");
        }
    }

    private void dispCityData() {
        titleText.setText(selectedProvince.getProvinceName());
        backButton.setVisibility(View.VISIBLE);
        cityList = DataSupport.where("provinceid=?",
                String.valueOf(selectedProvince.getProvinceCode())).find(City.class);
        Log.d("debug", String.valueOf(cityList.size()));
        if (cityList.size() > 0) {
            dataList.clear();
            for (City city : cityList) {
                dataList.add(city.getCityName());
            }
            adapter.notifyDataSetChanged();
            CurrLevel = LEVEL_CITY;
        }else{
            int provinceCode = selectedProvince.getProvinceCode();
            String address = "http://guolin.tech/api/china/" + provinceCode;
            queryDataFromServer(address,"city");
        }
    }

    private void dispCountyData() {
        titleText.setText(selectedCity.getCityName());
        backButton.setVisibility(View.VISIBLE);
        countyList = DataSupport.where("cityid=?",
                String.valueOf(selectedCity.getCityCode())).find(County.class);
        if (countyList.size() > 0){
            dataList.clear();
            for (County county : countyList){
                dataList.add(county.getCountyName());
            }
            adapter.notifyDataSetChanged();
            CurrLevel = LEVEL_COUNTY;
        }else{
            int provinceCode = selectedProvince.getProvinceCode();
            int cityCode = selectedCity.getCityCode();
            String address= "http://guolin.tech/api/china/" + provinceCode + "/" + cityCode;
            queryDataFromServer(address,"county");
        }
    }

    private void queryDataFromServer(final String address, final String type){
        showProgressDialog();
        HttpUtil.sendOkHttpRequest(address, new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                getActivity().runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        closeProgressDialog();
                        Toast.makeText(getContext(),"加载失败",Toast.LENGTH_SHORT).show();
                    }
                });
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                String responseText = response.body().string();
                boolean result = false;
                if ("province".equals(type)){
                    result = Utility.hanleProvinceResponse(responseText);
                }else if("city".equals(type)){
                    result = Utility.handleCityResponse(responseText,selectedProvince.getId());
                }else if ("county".equals(type)){
                    result = Utility.handleCountyResponse(responseText,selectedCity.getId());
                }
                if (result){
                    getActivity().runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            closeProgressDialog();
                            if ("province".equals(type)){
                                dispProvinceData();
                            }else if ("city".equals(type)){
                                dispCityData();
                            }else if ("county".equals(type)){
                                dispCountyData();
                            }
                        }
                    });

                }
            }
        });
    }

    private void showProgressDialog(){
        if (progressDialog == null){
            progressDialog = new ProgressDialog(getActivity());
            progressDialog.setMessage("正在加载。。。。");
            progressDialog.setCanceledOnTouchOutside(false);
        }
        progressDialog.show();
    }

    private void closeProgressDialog(){
        if (progressDialog != null){
            progressDialog.dismiss();
        }
    }
}